Groundhogg — CRM, Newsletters, and Marketing Automation <= 4.5.2 - Insecure Direct Object Reference
| CVE | CVE-2026-11454 |
|---|---|
| CVSS | 6.5 (Medium) |
| Publicly Published | August 4, 2026 |
| Last Updated | August 5, 2026 |
| Researcher |
Lucius-log
|
Description
The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.5.2 via the GET /wp-json/gh/v4/contacts/<id> REST endpoint. The endpoint's permission callback checks only the role-level view_contacts capability and read_single() returns the full contact record by sequential integer ID without the object-level view_contact ownership check applied elsewhere in the codebase. This makes it possible for authenticated attackers holding view_contacts but not view_others_contacts — notably Groundhogg's built-in Sales Rep role, designed to see only its own contacts — to read any contact record on the site, including PII, contact meta, owner IDs, the admin edit URL, and (for contacts linked to a WordPress user) that user's full capability set.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Groundhogg — CRM, Newsletters, and Marketing Automation
| Software Type | Plugin |
|---|---|
| Software Slug | groundhogg (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 4.5.3, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Groundhogg — CRM, Newsletters, and Marketing Automation
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